Hi all! Would someone be so kind as to instruct me on how to make the change from Sonora XP plates to Sonora XTRA plates on the platemaker computer? Kodak dialed in and made the change over a year ago and told me what to do but we haven't received XTRA plates until today and being so long ago, I've forgotten. I've looked but can't seem to find it. I know it was easy....Thanks!